Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Use the space provided to write out the steps you take to solve different types of problems.<br />
Use any additional space for notes. These 2 pages should be full when you turn in your notebook.<br />
Steps to solve problems<br />
Mole to Mole:<br />
(1) In the equation: _H^2+_O^2 -> _H^2O , If you are given 6<br />
moLs of H^2, how many moLs of O^2 will react with it?<br />
1. Balance the equation: _2_H^2+ _1_O^2 -> _2_H^2O<br />
2. Take what you are given and convert to what you need it to<br />
be through the balanced equation<br />
3. Multiply across the bottom and top<br />
4. Match significant figures: The answer is: 3 moLs of O^2<br />
(1) For the balanced equation shown below, how many moles<br />
of H^2 will be produced by 53.5grams of Al?<br />
_2_Al+_3_H^2SO^4=>_1_Al^2(SO^4)^3+_3_H^2<br />
1. Take what you are given and convert to what you need it to be<br />
through mole:mole<br />
and mole:mass ratios<br />
2. Take the grams and figure out the molar mass of the compound, so<br />
you know how much is 1 moL<br />
Al = 27amu, therefore, 27g of Al = 1 moL Al<br />
3. Convert the given mass to moLs through the balanced equation<br />
4. Now convert to the unit that you want to end with (in this case,<br />
moLs of H^2)<br />
5. Multiply across the top and the bottom and then divide to find the<br />
amount you're looking for in moLs<br />
6. Apply significant figures<br />
The answer would be: 2.97 moLs of H^2<br />
Pg106
Change language